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| | Mufulira |
 | | At Mufulira ore minerals, mainly chalcocite, bornite, and chalcopyrite, occur finely disseminated or in coarser blebs of replacable habit in rocks ranging from argillite to coarse conglomeratic sandstone, but the typical host rock is sandstone, and the high‑energy depositional environment of some of the host rocks cannot be considered favorable for chemical precipitation of sulfides. |
 | | At Mufulira, thin laminar concentrations of copper sulfides frequently occur on the foresets of crossbedding in sandstones, and visual observation may suggest a detrital origin for the sulfides. |
 | | The Mufulira ore bodies may be described as containing a nucleus of carbonaceous wacke, enveloped by mottled sandstone that was, at least originally, also rich in organic carbon, and fringed by cleaner, non‑carbonaceous arenites or conglomerates. |
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